Day 41: Boone Dies.
Day 46: Shannon and Sayid have sex.
As we know from 'The Other 48 Days' episode, Boone spoke to Bernard on Day 41, and then died later that night.
After watching the repeat of this episode I realised that Shannon died on Day 48. And I'm guessing that she died early in the morning on Day 48 (as oppose to late at night on Day 48). So this means that the day before was when she, Sayid and Vincent went into the jungle looking for Walt. So this means that the night before (Day 46) is when Shannon and Sayid had sex.
Now my question is... is this realistic?
Personally, I haven't ever lost anyone CLOSE to me, so I haven't really experienced the grieving process yet. But I just find it hard to believe that in like 5 days, you would have the strength (emotionally) to have sex with someone on an island

It may be more realistic if she had other family and friends around her who were also grieving and who were there for her. But it's not like the other Losties cared so much, because they had more things to worry about (like the Others, the Raft, and the Hatch, etc..). So she was alone and she had lost the last person in her life (who she knew before the island) who she loved and who loved her back, and yet she finds it in her to do that with Sayid just a mere 5 days later.
Not to mention the shock of seeing Walt for the first time a few nights before (in MoS,MoF) - surely all this action and stress would be enough to send her straight to sleep every night?!

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<3 Lost. <3 Claire. <3 Charlie&Claire. <3 Kate. <3 Danielle.
R.I.P. Ana. R.I.P. Libby. R.I.P. Shannon.... oh yeah.. and Boone too I guess *ahem*.
Danielle: (to Claire) I hope your baby is not infected. But, if he is, I hope you know what must be done...
Kate: Should I go and get a ruler?
Jack: Is this what you were talking about Locke? Is this your destiny? All roads lead here.
D.O.L - Spreading the word and promoting Locke's image..
<3 Desperate Housewives <3 Friends <3 C4 & E4!
Susan: Oh help! ... Can anybody hear me?! ... Julie?! I need you to try to unlock the door. Oh, what am I saying, she's two!
Okay, I need you to unbuckle yourself and try to find a neighbour... but don’t cross the street!! Just tell the neighbour that your mommy’s stuck in a big truck!